<!doctype html> 
<html> 
<head> 
    <meta charset="utf-8"> 
    <title></title> 
</head>
<body>
<script type="text/javascript">
	
	var a = 'asdddjal';
	alert(a.split('d'))
	//a,s,d,j,a,l
	//as,jal
	//as,,,jal
	//['as','jal']

	
</script>
</body>
</html>